The Ancestor to the Animals Appears to Have Belonged to This

question 39

Multiple Choice

The ancestor to the animals appears to have belonged to this group.

• A)Foraminifera
• B)Dinoflagellates
• C)Choanoflagellates
• D)Euglenoids

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Definitions:

Plasma Membranes

A double-layer of lipids forming a barrier around the cell cytoplasm, regulating the entry and exit of materials.

Hyperpolarization

A state in which the membrane potential of a cell becomes more negative than its normal resting potential.

Blood pH

The measurement of acidity or alkalinity in the blood, essential for maintaining homeostasis and normal bodily function.

Respiratory Center

A region of the brain stem involved in the regulation of breathing rhythm and depth.